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Pentaerythrityl Tetra-di-t-butyl
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Ingredient Facts
Pentaerythrityl tetra-di-t-butyl
Synthetic · Antioxidant
WHAT IS IT?
Synthetic
Antioxidant
Clean
This synthetic preservative prevents cosmetic products from breaking down and becoming rancid, keeping them fresh and stable on your shelf.
See origin →
WHAT'S IT DO?
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
WHAT'S IT IN?
(2)
Lip Suede Palette - Les Nudes
Westman Atelier
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Lip Suede Palette - Les Rouges
Westman Atelier
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WHAT'S THE PROOF?
Safety Assessment of Pentaerythrityl Tetra-Di-t-Butyl Hydroxyhydrocinnamate as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Verified Feb 2026
Data: CosIng
Pentaerythrityl Tetra-di-t-butyl — Duck Heart Ghost